Inventor
INAZAWA YOSHIZUMI
JP26 patents
⚠️ This page may combine multiple inventors who share the name “INAZAWA YOSHIZUMI”. Patents are grouped by organization below to help distinguish them — per-person disambiguation is on the roadmap.
SONY CORP
21 patentsUS6587948B1Jul 1, 2003
Recording apparatus, recording medium, playback apparatus, recording method and playback method
SONY CORP74 citations96
US6157606ADec 5, 2000
Recording apparatus, reproducing apparatus and optical recording medium
SONY CORP74 citations96
US5872755AFeb 16, 1999
Method of recording on a disc medium a ΣΔ-modulated signal with a sampling frequency times 44.1 kHz
SONY CORP24 citations92
US5712838AJan 27, 1998
Method and apparatus for recording on a disk medium a ΣΔ-modulated signal with a sampling frequency n×44.1 kHz
SONY CORP20 citations92
US5012459AApr 30, 1991
Data recorder
SONY CORP31 citations92
US4899232AFeb 6, 1990
Apparatus for recording and/or reproducing digital data information
SONY CORP32 citations92
US4873589AOct 10, 1989
Data recorder and method
SONY CORP45 citations92
US5091805AFeb 25, 1992
Apparatus and method for recording and/or reproducing a digital signal
SONY CORP16 citations82
US4641208AFeb 3, 1987
Recording/reproducing apparatus
SONY CORP22 citations81
US4592036AMay 27, 1986
Disc player with search noise suppression
SONY CORP6 citations74
US4764824AAug 16, 1988
Dual servo system for rotating tape head control
SONY CORP7 citations73
US4688115AAug 18, 1987
Apparatus for reproducing a digital signal
SONY CORP17 citations73
US4630142ADec 16, 1986
Apparatus for reproducing a digital signal
SONY CORP8 citations73
US5379152AJan 3, 1995
Data recorder which partitions the recording medium into data information and table of contents information
SONY CORP15 citations72
US4821128AApr 11, 1989
Apparatus for recording and/or reproducing a control signal
SONY CORP12 citations72
US5134529AJul 28, 1992
Apparatus and method for recording a digital signal
SONY CORP12 citations71
US4958244ASep 18, 1990
Method of position detection on a recording medium
SONY CORP12 citations71
US5067131ANov 19, 1991
Apparatus and method for recording and/or reproducing a digital signal
SONY CORP3 citations63
US4811315AMar 7, 1989
Disc player with program selection control
SONY CORP4 citations63
US4682312AJul 21, 1987
Disc player with search noise suppression
SONY CORP3 citations63
US5144501ASep 1, 1992
Data recorder and method of operation
SONY CORP6 citations61